I think got more with the fact that you're talking to the wrong crowd rather than being "the only one interested".
Have you tried looking for partners directly in Oculus or Unreal dev forums?
You already have a portfolio of project, so they'd know you're serious ʕ´°ᴥ °`ʔ
You'd probably have higher chance of success on more targeted websites since people would immediately share your interest and/or have the needed competences/material to work with you. ʕ/ ·ᴥ·ʔ/